Splicing And Terminating 030104c

Question 1

What are the four common classes of terminations and connections?

Objective 1 Page 2

Answer 1

Soldered

Fused

Mechanical

Compression

Question 2

What type of connection is best for electronics?

Objective 1 Page 2

Answer 2

Soldered

Question 3

What connection normally requires a screwdriver and is considered reusable?

Objective 1 Page 3

Answer 3

Mechanical

Question 4

What is the proper way to remove the insulation from conductors?

Objective 2 Page 7

Answer 4

Penciling the insulation at approximately 30 degrees.

Ensure to never ring the conductors.

Question 5

Name four materials that can be used to reinsulate a spliced conductor?

Objective 2 Page 8

Answer 5

Electrical tape

Heat Shrink Tubing & Caps

Splicing Compound

Preformed insulating covers and boots.

Question 6

What are two insulation properties you must consider when selecting a twist-on wire connector?

Objective 2 Page 8

Answer 6

Maximum voltage

Temperature.

Question 7

What are the three basic wire or cable connections?

Objective 3 Page 11

Answer 7

Splices

Taps

Terminations.

Question 8

What is the difference between a splice and a tap?

Objective 3 Page 11 & 12

Answer 8

Splice is the joining of two or more conductors of the same size and ampacity.

Taps are connections when at least one of the conductors is a smaller size that the other conductors.

Question 9

What is a termination?

Objective 3 Page 13

Answer 9

The connection of a conductor at its final destination.

Question 10

What is the maximum wire size that can be terminated under a screw?

Objective 4 Page 15

Answer 10

10 AWG

Question 11

On devices that have a wire binding screw terminal with a raised shoulder what is not required?

Objective 4 Page 15

Answer 11

It is not required to wrap the conductor around the screw.

Question 12

What are the four problems specific to aluminum conductor connections?

Objective 5 Page 22 & 23

Answer 12

Oxidation

Cold Flow

Thermal Expansion

Galvanic Corrosion.

Question 13

What markings must be on a receptacle if it is to be used with aluminum conductors?

Objective 5 Page 24

Answer 13

CU/AL or CO/ALR

Question 14

What must you do after stripping aluminum wire?

Objective 5 Page 22

Answer 14

Must be wire brushed to remove any oxide then coat with anti-oxidant.

Question 15

What can you do to help with cold flow?

Objective 5 Page 23

Answer 15

A lowering binding pressure can help reduce cold flow. A conical or helical washer must be used when you connect aluminum lugs to bus bars.

Question 16

What can happen if you use a normal copper connector for aluminum?

Objective 5 Page 23

Answer 16

Due to the extra 38% expansion size of aluminum, over several heating and cooling cycles the conductor will become loose.

Question 17

What are some ways to reduce galvanic corrosion?

Objective 5 Page 23

Answer 17

Keep connections dry

Have one material a much larger mass than the other.

Separating the metals by non-reactive, but conductive alloy spacers.

Question 18

What type of connection utilizes an exothermic reaction and is often used for grounding and bonding connections?

Objective 1 Page 3

Answer 18

Fused Connections.

Question 19

What type of connection requires a tool and are not reusable?

Objective 1 Page 4

Answer 19

Compression Connections